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104463
VENT-FREE NATURAL GAS STOVE HEATER
O
N
POSI
T
O
PO
S
INSTALLATION
Continued
WARNING: Never use an
open flame to check for a leak.
Apply a noncorrosive leak de-
tection fluid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
WARNING: Test all gas pip-
ing and connections for leaks
after installing or servicing. Cor-
rect all leaks at once.
CHECKING GAS
CONNECTIONS
Pressure Testing Gas Supply
Piping System
Test Pressures In Excess Of 1/2 PSIG
(3.5 kPa)
1. Disconnect appliance with its appliance
main gas valve (control valve) and equip-
ment shutoff valve from gas supply pip-
ing system. Pressures in excess of 1/2
psig will damage heater regulator.
2. Cap off open end of gas pipe where
equipment shutoff valve was
connected.
3. Pressurize supply piping system by
either using compressed air or open-
ing main gas valve located on or near
gas meter.
4. Check all joints of gas supply piping
system. Apply noncorrosive leak detec-
tion fluid to gas joints. Bubbles form-
ing show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment
shutoff valve to gas supply. Check re-
connected fittings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see
Figure 19).
2. Pressurize supply piping system by
either using compressed air or open-
ing main gas valve located on or near
gas meter.
3. Check all joints from gas meter to
equipment shutoff valve (see Figure
19). Apply noncorrosive leak detection
fluid to gas joints. Bubbles forming
show a leak.
4. Correct all leaks at once.
Pressure Testing Heater Gas
Connections
1. Open equipment shutoff valve (see
Figure 19).
2. Open main gas valve located on or near
gas meter.
3. Make sure control knob of heater is in
the OFF position.
4. Check all joints from equipment
shutoff valve to control valve (see Fig-
ure 20). Apply noncorrosive leak de-
tection fluid to gas joints. Bubbles
forming show a leak.
5. Correct all leaks at once.
6. Light heater (see Operating Heater,
page 13). Check all other internal joints
for leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, page 13).
Figure 19 - Equipment Shutoff Valve
Closed
Equipment
Shutoff
Valve
Gas Meter
Equipment
Shutoff
Valve
Control Valve Location
Figure 20 - Checking Gas Joints
Open